r0 = syz_io_uring_setup(0x3872, &(0x7f0000000240), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000000080), &(0x7f0000000100))
io_uring_register$IORING_UNREGISTER_BUFFERS(r0, 0xc, 0x0, 0x2)